Casting device.



- PATENTED'JUNE 2, 1 908 P. SGHWIGKART. CASTING DEVIGE.y

uNrrED seras @fr OFFICE- PHILIP SCHWCKART, OF NEW YORK, N. Y

CASTING novios.

Specification of Letters Patent.

Patented J une 2, 199g.

Application filed May 14, 1907, Serial No. 373,@4.

` f ull, clear, and exact description.

The invention relates to metal founding, and its object is to provide anew and iinproved casting device for use on the flask or mold, andarranged vto insure proper `filling of the inold\witli the molten metal7and without danger of slag, scum or like impurities passing with themolten metal into the iiiold,

thus insuring the formation of very fine homogeneous castings.

Reference is to be had to the accompanyy ing drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding arts in all the figures.

Figure 1 is a sectiona side elevation of the improvement as applied Fig.2 is an cnlarged sectional plan View of the improve* ment on thciliiie 22 of Fig. l Fig. 3 is a side elevation of the purifying receptacle,`

and Figs. 4 `and 5 are elevations of the oppo- `C, as plainlyillustrate( site ends of the purifying receptacle` The casting device Ais preferably set on top of the iiiold or flask B, as plainly shown inFig. 1, and the said casting device i consists essentially of apurifying receptacle C and a reservoir D, into which the molten metal ispoured, to flow from the reservoir D into the purifying receptacle andfrom the latter into the pouringhole E leading to the interior of themold l. to lill the same for loriiiiiig the desired casting.

` The purifying receptacle C is solid and, preferably, made of the usualcore material, while the reservoir D is formed. of ordinary molding sandcontained in a frame F set or resting on top of the mold B, the saidmolding sand surrounding the urifying receptacle l) in the drawings. Theurilying receptacle C is provided with a nel C, preferably of circularshape, as plainly shown in Fig. 2, and channels (Landi) formed in thewalls of the well C connect the interior .of the reservoir D with? thewell C. in outlet channel c leads from the well C to connect with arecess d formed on the outside of the purifying receptarle C and leadingto L'lie pouring hole E, as shown in Figs. l and Z. The channels c, band c are arranged approxiu'iatel y in the same horizoniilplane,

a distance allieve the bottom of the Well C, and the inlet channel wpasses tangentially into the Well C While the 'Other inlet channel' bextends at an andle to the channel a. and opens into the Well C', adistance from the inner end ofthe channel a, as shown in Fig. 2. Theoutlet channel c leads tangentially. from the Well C at a point oppositethe channel o, and this outlet channel c is approximately of a less sizethan the aggregate size of the inlet channels o and b. i f

The purifying receptacle C has the ortion (f2 of 'its base` extendinginto and fiirining part of the bottoni of the reservoir D, and the sideC3 adjacent to the said projecting base portion C2 forms part of thecircular wall of the reservoir D. The top of the projecting base portionC2 is flush With the bottoms of i the inlet channels a and b, so'thatthe molten metal readily flows from the-reservoir D over the saidprojecting base portion C2 into the channels a and b,'and by having thelatter arranged as described, it is evident that a whirling motion isgiven to the molten metal in the well C', to cause the slag74 scum or4other like impurities to quickly rise to the top of the molten metal inthe Well C, and.'

Which top is level with the level of the molten metal iii the reservoirD. The purified molten metal flows-from the Well C through the outletchannel c into the pouring hole E and to the interior of the mold B, tofill the'` saine for forinirg the casting.l l y lt understood that bymaking the outlet channel c less than the aggregate size of the inletchannels e and the metal rises in the well C to the saine level as themolten metal contained iii thereservoir D, and hence only purified`metal passes into the mold B.

tending into the reservoirD, it is evident that the molten metalcontained therein readily 'flows over the said solid base portion C2 tothe inlet channels o and i), Without danger of' clogging up the channelsby sand or other im iurities.

l y making the bottoms of both the reservoir D and the Well C lower thanthe channels a, b and c, it is evident that any heavy foreign materialin the molten'metal may sa By having the solid base portion C2 ex'`settle in the said bottoms Without danger of passing to the interior ofthe mold B.

lt is understood "that a new purifying receptacle and reservoir l) isused for each mold when ni akin(r a casting. As the said purifyingreceptacle C as Well as the reservoir D can be cheaply constructed, itisevident that the expense in melting the casting receptacle having a wellprovided with an inlet and an outlet, the inlet being connected With thesaid reservoir for the molten metal t0 flow from the reservoir into theWell, the

said inlet being above the level of the bottom of the reservoir and Wellarranged to cause a j Whirl of the molten metal in the well.

2. A casting device comprising a reservoir for receiving the moltenmetal, a uriiying receptacle having a Well `ro'vided With an inlet andan'ontlet, the in et' heilig connected with the reservoir to permit themolten metal to llow from the reservoir into the well, the outletleading to the pouring hole olE the moli' the bottom oll the said inletheilig above the bottom of the reservoir and the bottoms ol'A both theinlet and the outlet being above the bottom oll the well.

3. A casting device provided with a puril'ying receptacle having acircular well provided with spaced inlet channels l'or connection with amolten metal supply, the inlet 'channels being at angles one to theother,

and one ol' the inlet channels being arranged tangentially, the saidwell having an outlet channel leading tai'igentiallj lrom the wellapproximately at a point directly opposite the tangential inlet channel14. A casting device provided with a purifying receptacle having acircular well provided with spaced inlet channels for connection with almolten metal supply, the inlet channels being at angles one to theother, the base of `the purifying receptacle projecting beyond theentrance ends of the said inlet channels.

b, A casting device provided with a purifying re eptacle having acircular Well provided` with spaced inlet channels for connection wilhaniolten metal supply, the inlet channels being at angles one to the'other, the base of the purilying receptacle projecting beyond theentrance ends of' the .said inlet channels, and the top olt the baseprojection being iiush with the bottoms of the said inlet channels.

6. A casting device provided with a puri? tying receptacle having acircular Welt pro vided with spaced inlet channels for connection with amolten metal supply, the inlet channels being at angles one to theother, and one ci the inlet channels being arranged tangentially, thesaid well having an outlet channel leading tangentially from the wellapproximately lat a point directly-oppositethev tangential inletchannel, the said inlet and outlet channels being arranged approximatelyin the saine horizontal p ane.

7. A casting device provided with a puritying receptacle having acircular Well'provided with spaced inlet channels for connection with amolten metal supply, the inlet channel@ being`at angles'on'e to theother, and .onU ot' the inlet channels being arranged tangentially, thesaid well having an outlet 'channel leading tangentially from thewellapproximately at a point-directly opposite the tangential inlet,channel, the said inlet and outlet ehai'incls being arrangedapproximately in the saine 4horizontal plane a distance above thebottoni ot the well.

S. A casting device provided with a puritying receptacle having acircular Well provided with spaced inlet channels for connection with amolten metal supply, the inlet channels being at angles one to theother, the base of the purifying receptacle projecting beyond theentrance ends ot the said inlet channels, and the top-ot the baseprojection i being ilush with the bottom of the` said inlet channels,and a reservoir for connecting the molten material and from which leadthe said inlet channels, one side of the purifying receptacle forminga-portion of the interior Wall of' the reservoir and the top of thebasel projection forming a portion of the bottom of the reservoir.

ln testimony whereof I have signed my naine to this speciiication in thepresenceol two subscribing Witnesses,

i y Plflllill) SCHVVICKART. W tnesses z i Tnno. G..Hos'rnn, EVERARD B.MansHALL.

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